The Year in Energy

With many renewable energy companies facing hard financial times (“Weeding Out Solar Companies”), a lot of the big energy news this year was coming out of Washington, DC, with massive federal stimulus funding for batteries and renewable energy and programs such as Energy Frontier Research Centers and Advanced Research Projects Agency-Energy (“A Year of Stimulus for High Tech”).

But there was still plenty of action outside the beltway, both in the United States and around the world. One of the most dramatic developments (“Natural Gas Changes the Energy Map”) was the rush to exploit a vast new resource; new drilling technologies have made it possible to economically recover natural gas from shale deposits scattered throughout the country, including in Texas and parts of New York, Pennsylvania, and Ohio. Advances in drilling technology have increased available natural gas by 39 percent, according to an estimate released in June. The relatively clean-burning fuel could cut greenhouse gas emissions by becoming a substitute for coal. Natural gas might even provide an alternative to petroleum in transportation, especially for buses and taxis–if only policymakers could take advantage of the new opportunity.

Cellulosic ethanol–made from biomass such as grass rather than corn grain–moved closer to commercialization, with announcements of demonstration plant openings (“Commercializing Garbage to Ethanol”) and scientific breakthroughs that could make the process cheaper (“Cellulosic Ethanol on the Cheap”). But at the same time, a number of companies are moving beyond cellulosic ethanol to the production of gasoline, diesel, and jet fuel from biomass–fuels that can be used much more readily in existing infrastructure and in existing vehicles. Exxon-Mobil announced substantial investments in algae-based fuels (“Big Oil Turns to Algae”). Remarkably, one startup declared its process–based on synthetic genomics and algae–could allow biofuels to replace all of transportation fuels without overwhelming farmland (“A Biofuel Process to Replace All Fossil Fuels”).